probabilities: Easy (100%)Automatic Success (if your skill exceeds the difficulty level) Medium (58.3%)Success on rolling 7 or lower on 2d6 (if your skill is equal to the difficulty level) Hard (16.7%)Success on rolling 4 or lower on 2d6 (if your skill is a single point lower than the difficulty level) Impossible (0%)Automatic Failure (if your skill is more than a single point lower than the difficulty level) There are also resolution systems for non-skill actions, competitive actions, extended actions such as research, and use of specific powers and abilities using the core resolution system as a base. Difficulties range from 1 to 5, and sometimes higher for very difficult actions. Players can also try to use their character's psychic abilities by utilising Zener cards (square, star, cross, wave or circle). If a player wants to use his character's psychic ability, perhaps to foretell the future, the player names one of the symbols; the gamemaster draws a number of cards corresponding to the character's psychic ability and turns them over. If one of the cards is the symbol predicted by the player, the psychic action succeeds. Supplements The first edition was very well supported, with a number of supplements: The Aegis Handbook (1997)Player's Guide to Aegis. The Hand Unseen (2002)Player's Guide to the NDD, or Black Book. Nemesis (1999)Grey sourcebook. Atlantis Rising (1998)Atlantean sourcebook. Exodus (1999)Saurian sourcebook. Forsaken Rites (1997)Supernatural sourcebook. Shadows of the Mind (1999)Psi sourcebook. Cryptozoology (1997)Dossier of the Unexplained. Sub Rosa (1999)Conspiracy Creation sourcebook. Gamemaster Screen (1996)with adventure module included. Bodyguard of Lies series: Psi Wars (1998)Introduces Dreaming, New Creditials, Trait and Resources, Alternate Weapon Ranges, Compilation of Alien Technology Resource Points and Psionics, New Informational Sources, Fear and insanity Rules, Manifestations, Biological, chemical, and radioactive menaces. The majority of the supplement is Psi-Wars, a complete Conspiracy X scenario. Mokole (1998) Synergy (1999)Introduces Rules for Toxins and Poisons. The majority of the supplement is Synergy, a complete Conspiracy X scenario. GURPS Edition Another version was published in 2002 using the GURPS rules-set. This was the second Powered by GURPS licensed game to be produced outside of Steve Jackson Games. In addition to GURPS rules it provided conversion guidelines for players of the first Conspiracy X. The GURPS variant is part of the "Classic" Edition line and features the same cover art. Second Edition (Conspiracy X 2.0) Conspiracy X 2.0 was published in 2006 (features the Unisystem rules) and